<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .container{
            display: flex;
        }
        .center {
            height: 150px;
            background-color: #94E8FF;
            flex-grow: 1;
            
        }

        .left {
            width: 100px;
            height: 150px;
            background-color: #FFB5BF;
            order: -10;
         
        }

        .right {
            width: 200px;
            height: 150px;
            background-color: #8990D5;
        }
    </style>
</head>

<body>
    <div class="container">
        <div class="center">center</div>
        <div class="left">left</div>
        <div class="right">right</div>
    </div>
</body>

</html>